Basic StructureCold room door panels are joined together by means of tongue and groove and locked together by camlock on each side of the panel to ensure air tight joints. * Cam-lock design fastener to install with the cold room tightly and strongly

* Silica gel are used on the cold room door panel edge of the joint parts of each sandwich panel to ensure perfect sealing to avoid the cooling air leakage from the cool roomor moisture inside the PU insulated panel for the best refrigeration and frozen storage result.